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Finding the Fourth Proportional to 60,142.80, 83,002.44 and 33,291.60

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Solution

The fourth proportional to 60,142.80, 83,002.44 and 33,291.60 is: 45,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,142.80 : 83,002.44 = 33,291.60 : x
  2. Step 2: Convert to fraction form
    60,142.80/83,002.44 = 33,291.60/x
  3. Step 3: Cross multiply
    60,142.80x = 83,002.44 × 33,291.60
  4. Step 4: Simplify right side
    60,142.80x = 2,763,284,031.50
  5. Step 5: Solve for x
    x = 2,763,284,031.50/60,142.80
  6. Step 6: Final answer
    x = 45,945.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.